QoL: disabling instant-recruit in open slots

Karass

Well, I've saved up some room in my roster for future 4 and 5 stars, and I can't be the only one there, who has no need for 1* except the one needed for DDQ.

So I need to know why we can't add a simple lock icon to the already existing many buttons on character sheets to avoid recruiting specifically said pesky and unloved 1 stars for the billionth time.
Heck if it's too difficult, I'd be satisfied with a general option in the menu where I can tick off "automatically recruit unowned covers" and be gone with that?

Folks, please let devs see how important this QoL is and how much it's needed Pretty please?